That Bill Cooper lecture video was one of my first 'lessons' after I had my wake-up shock.
I stripped the sound track from it and cleaned it up and listened to it many times. I even used parts of it in my own montages to try to wake up friends. That was when I realised how difficult and frustrating it was going to be from here on.
When I made my first 'discoveries' I thought EVERYONE was going to just stop dead in their tracks and listen and learn. Oh how wrong I was!
EDIT: ( I found out later that MUFON had tried to prevent him from delivering his speech when they found out what he was going to be talking about. He had to set up an alternative venue down the street and 'everybody' followed him there. So, MUFON and probably all the other organisations are not to be trusted. )